WENTZCOVITCH GROUP

Shephard, G.E., Houser, C.,et al., Wentzcovitch, R.M., Seismological expression of the iron spin crossover in ferropericlase in the Earth's lower mantle. Nat Commun 12, 5905 (2021). https://doi.org/10.1038/s41467-021-26115-z... M59.00004 - Electronic structure and stability field of iron-bearing pppv Mg 2 SiO 4 at ultra-high pressure... Earth's inner core is dominated by iron, which can exist as a solid material in more than one crystallographic form. (This quality allows iron to combine with other elements to form alloys.) Iron's most stable form at room temperature is the body-centered cubic (bcc) structure. At extremely high pressures, it is stable in its hexagonal close-packed (hcp) phase. Of considerable debate, however, is iron's structure at the center of Earth. In a new study, Sun et al. get one step closer to an answer.

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